|Year|Single|Chart|Position|
|---|---|---|---|
|1975|"Sun Goddess"|Black Singles|20|
|1975|"Sun Goddess"|Disco Singles|5|
|1975|"Sun Goddess"|Pop Singles|44|
|1976|"Can't Hide Love"|Black Singles|11|
|1976|"Can't Hide Love"|Pop Singles|39|
|1976|"Sing a Song/Gratitude"|Club Play Singles|1|
|1976|"Sing a Song"|Black Singles|1|
|1976|"Sing a Song"|Pop Singles|5|

Question: how many of the singles are under the chart of pop singles?
Answer: 3